Code
Execute
<!DOCTYPE html> <html> <body> <select> <optgroup label="WEB DEVELOPMENT IN WIKITECHY"> <option value="css">CSS</option> <option value="html">HTML</option> </optgroup> <optgroup label="PROGRAMMING TECHNOLOGY IN WIKITECHY"> <option value="java">JAVA</option> <option value="c">C</option> </optgroup> </select> </body> </html>
Result
